diff --git a/pc/channel.cc b/pc/channel.cc
index 916c403a00..caf8c93956 100644
--- a/pc/channel.cc
+++ b/pc/channel.cc
@@ -94,20 +94,6 @@ static void SafeSetError(const std::string& message, std::string* error_desc) {
   }
 }
 
-template <class Codec>
-std::vector<Codec> SanitizeCodecList(const std::vector<Codec>& codecs) {
-  std::vector<Codec> sanitized;
-  for (const Codec& codec : codecs) {
-    if (absl::c_any_of(sanitized, [&](const Codec& other) {
-          return codec.Matches(other);
-        })) {
-      continue;
-    }
-    sanitized.push_back(codec);
-  }
-  return sanitized;
-}
-
 template <class Codec>
 void RtpParametersFromMediaDescription(
     const MediaContentDescriptionImpl<Codec>* desc,
@@ -117,7 +103,7 @@ void RtpParametersFromMediaDescription(
   // a description without codecs. Currently the ORTC implementation is relying
   // on this.
   if (desc->has_codecs()) {
-    params->codecs = SanitizeCodecList(desc->codecs());
+    params->codecs = desc->codecs();
   }
   // TODO(pthatcher): See if we really need
   // rtp_header_extensions_set() and remove it if we don't.
diff --git a/pc/channel_unittest.cc b/pc/channel_unittest.cc
index 952570e1c2..db0e8a8d02 100644
--- a/pc/channel_unittest.cc
+++ b/pc/channel_unittest.cc
@@ -45,7 +45,6 @@ using cricket::FakeVoiceMediaChannel;
 using cricket::RidDescription;
 using cricket::RidDirection;
 using cricket::StreamParams;
-using testing::ElementsAre;
 using webrtc::RtpTransceiverDirection;
 using webrtc::SdpType;
 
@@ -2269,27 +2268,6 @@ TEST_F(VideoChannelSingleThreadTest,
   EXPECT_EQ(media_channel1_->send_codecs()[0].packetization, absl::nullopt);
 }
 
-// Test that if the session description has the same codec assigned to two
-// payload types then the MediaChannel will only receive the one that comes
-// first in the list.
-TEST_F(VideoChannelSingleThreadTest, TestFilterDuplicateDynamicCodecs) {
-  const char kCodecName[] = "VP8";
-  cricket::VideoCodec codec(98, kCodecName);
-  cricket::VideoCodec duplicate(99, kCodecName);
-  cricket::VideoContentDescription video_content;
-  video_content.set_codecs({codec, duplicate});
-
-  CreateChannels(0, 0);
-
-  EXPECT_TRUE(
-      channel1_->SetRemoteContent(&video_content, SdpType::kOffer, NULL));
-  EXPECT_TRUE(
-      channel1_->SetLocalContent(&video_content, SdpType::kAnswer, NULL));
-
-  EXPECT_THAT(media_channel1_->recv_codecs(), ElementsAre(codec));
-  EXPECT_THAT(media_channel1_->send_codecs(), ElementsAre(codec));
-}
-
 // VideoChannelDoubleThreadTest
 TEST_F(VideoChannelDoubleThreadTest, TestInit) {
   Base::TestInit();